Analysis of Rectangular Folded-Waveguide Millimeter-Wave Slow-wave Structures using Conformal Transformations

Sumathy, M and Vinoy, KJ and Datta, SK (2009) Analysis of Rectangular Folded-Waveguide Millimeter-Wave Slow-wave Structures using Conformal Transformations. In: International Journal of Infrared and Millimeter Waves, 30 (3). pp. 294-301.

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Abstract

An analysis of rectangular folded-waveguide slow-wave structure was developed using conformal mapping technique through Schwarz's polygon transformation and closed form expressions for the lumped capacitance and inductance per period of the slow-wave structure were derived in terms of the physical dimensions of the structure, incorporating the effects of the beam hole in the lumped parameters. The lumped parameters were subsequently interpreted for obtaining the dispersion and interaction impedance characteristics of the structure. The analysis was benchmarked for two typical millimeter-wave structures, one operating in Ka-band and the other operating in Q-band, against measurement and 3D electromagnetic modeling using MAFIA.

Item Type:	Journal Article
Publication:	International Journal of Infrared and Millimeter Waves
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Keywords:	Conformal mapping;Conformal transformation;Polygon transformation;Rectangular folded-waveguide (RFW);Slow-wave Structure (SWS);Traveling-wave tube (TWT)
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	22 Apr 2009 04:58
Last Modified:	19 Sep 2010 05:29
URI:	http://eprints.iisc.ac.in/id/eprint/19647

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